Professional Answer: A cable pulling harness, often referred to as a multi-pull grip or multi-way pulling sling, is a specialized tool used to pull two, three, or even four cables simultaneously. Unlike a standard single-eye pulling grip that is designed for a single cable, a harness features multiple staggered legs, each with a separate attachment point for a cable. You should use a cable pulling harness from Ningbo Changshi when your project requires the simultaneous installation of multiple cables or ducts. This is particularly common in underground cable laying and certain overhead line installations where efficiency is key. Using a single harness reduces the number of pulls, saving significant time and labor.